108640944 has 30 divisors (see below), whose sum is σ = 304044156. Its totient is φ = 36213600.

The previous prime is 108640943. The next prime is 108640949. The reversal of 108640944 is 449046801.

It is a happy number.

108640944 is a `hidden beast` number, since 1 + 0 + 8 + 640 + 9 + 4 + 4 = 666.

It is a super-2 number, since 2×108640944² = 23605709426422272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 108640899 and 108640908.

It is not an unprimeable number, because it can be changed into a prime (108640943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 377082 + ... + 377369.

Almost surely, 2^108640944 is an apocalyptic number.

It is an amenable number.

108640944 is an abundant number, since it is smaller than the sum of its proper divisors (195403212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108640944 is a wasteful number, since it uses less digits than its factorization.

108640944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754465 (or 754456 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 108640944 is about 10423.0966607818. The cubic root of 108640944 is about 477.1605276986.

The spelling of 108640944 in words is "one hundred eight million, six hundred forty thousand, nine hundred forty-four".